CVE-2021-2351
Oracle Advanced Networking Option
Vulnerability in the Advanced Networking Option component of Oracle Database Server. Supported versions that are affected are 12.1.0.2, 12.2.0.1 and 19c. Difficult to exploit vulnerability allows unauthenticated attacker with network access via Oracle Net to compromise Advanced Networking Option. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Advanced Networking Option, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Advanced Networking Option. Note: The July 2021 Critical Patch Update introduces a number of Native Network Encryption changes to deal with vulnerability CVE-2021-2351 and prevent the use of weaker ciphers. Customers should review: "Changes in Native Network Encryption with the July 2021 Critical Patch Update" (Doc ID 2791571.1). CVSS 3.1 Base Score 8.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).
Exploitation status
- Published references include exploit or proof-of-concept material. There is no confirmation it is being used in real attacks.
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, exploitation depends on conditions outside the attacker's control.
- To exploit it, no account is needed.
- Beyond that, someone has to be persuaded to take an action first.
Scoring
- CVSS
- 8.3 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H- Weakness
- CWE-327
- Assigned by
- secalert_us@oracle.com
Dates
- Published
- 2021-07-21
- Last modified
- 2026-08-25
- Sources
- NVD
Affected products
- Oracle Advanced Networking Option12.1.0.2, 12.2.0.1, 19c
- Oracle Agile Engineering Data Management6.2.1.0
- Oracle Agile Product Lifecycle Management9.3.6
- Oracle Agile Product Lifecycle Management For Process6.2.2.0, 6.2.3.0
- Oracle Airlines Data Model12.1.1.0.0, 12.2.0.1.0
- Oracle Application Performance Management13.4.1.0, 13.5.1.0
- Oracle Application Testing Suite13.3.0.1
- Oracle Argus Analytics8.2.1, 8.2.2, 8.2.3
- Oracle Argus Insight8.2.1, 8.2.2, 8.2.3
- Oracle Argus Mart8.2.1, 8.2.2, 8.2.3
- Oracle Argus Safety8.2.1, 8.2.2, 8.2.3
- Oracle Banking Apis18.1 - 18.3, 19.1, 19.2, 20.1, 21.1
As listed in the NVD configuration data. Not a statement about your estate.
References
- http://packetstormsecurity.com/files/165255/Oracle-Database-Protection-Mechanism-Bypass.html
- http://packetstormsecurity.com/files/165258/Oracle-Database-Weak-NNE-Integrity-Key-Derivation.html
- http://seclists.org/fulldisclosure/2021/Dec/19
- http://seclists.org/fulldisclosure/2021/Dec/20
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujan2023.html
- https://www.oracle.com/security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- http://packetstormsecurity.com/files/165255/Oracle-Database-Protection-Mechanism-Bypass.html
- http://packetstormsecurity.com/files/165258/Oracle-Database-Weak-NNE-Integrity-Key-Derivation.html
- http://seclists.org/fulldisclosure/2021/Dec/19
- http://seclists.org/fulldisclosure/2021/Dec/20
- https://www.oracle.com/security-alerts/cpuapr2022.html